package day15;

import java.util.HashMap;
import java.util.Hashtable;
import java.util.Map;

public class TestHashTable {
    public static void main(String[] args) {
        Map<Integer,String> map = new Hashtable<>();
        map.put(1,"A");
        map.put(2,"B");
        map.put(3,"C");
        map.put(4,"D");
        map.put(5,"E");
        //map.put(7,null);
        System.out.println(map);
    }
}
